Organ-blower.



l. H. SPENCER.

ORGAN BLOWER. APPLICATION FILED SEPT. 13, 1912.

Patented 0V. 2, 1915.

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IRA H. SPENCER, OF 'WEST HARTFORD, CONNECTICUT, ASSIGNOR TO THE ORGANPOWER COMPANY, OF HARTFORD, CONNECTICUT, A CORPORATION OF CONNECTICUT.

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Specication of Letters Patent.

Application led September 13, 191.2. Serial 170.720,123.

To all whom t may concern:

Be it known that I, IRA H. SPENCER, a citizen of the United States, anda resident of West Hartford, in the county of Hartford and State ofConnecticut, have invented a new and Improved Organ-Blower, of which thefollowing is a specification.

My invention relates to the class of apparatus used for supplyingpressure to musicalinstruments and especially to pipe organs, althoughit will be understood that the invention is not necessarily limited tosuch use, and an objectof the invention, among others, is to provide anapparatus of this class that shall be simple and inexpensive inconstruction and extremely efficient in operation.

One form of structure embodying my in- Vention and in the constructionand use of which the objects herein set out, as well as others, may beattained is illustrated in the accompanying drawing, in which- Figure 1is a view in vertical central sec- Y tion through an apparatus embodyingmy invention. Fig. 2 is a view in vertical cross section through thesame on plane denoted by dotted line 2-2 of Fig. 1.

In the accompanying drawing the numeral 5 denotes a casing, composed ofany suitable material, preferably round in cross section, and with arecessed chamber 6 at one end in which a motor 7, herein shown as of the'electric type, is located. The casing also contains a blower chamber 8formed by the outer wall of the casing and the end walls 9, 10, theformer `dividing the motor or recessed chamber 6 from the blowerchamber, and the wall 10 forming the opposite and outer end Wall of theblower chamber. These end walls 9, 10 are composed of circular plates,in the' form of casing herein shown, each plate having a flange 11resting snugly against the inner surface of the casing. I

The blower chamber is divided -into a number of pressure compartments12, of any suitable number, three being shown herein, these pressurecompartments being formed by'diaphragms 13, each having a flange 14resting snugly against the inner surface of the casing and each providedwith a circular opening 15 for the passage of air from one pressurecompartment to another.

Each pressure compartment is divided into a fan chamber 16 and adeflector chamber 17, this being effected by means of separating'plates18 supported on studs 19 secured to the end. walls and diaphragms. Thesestuds are preferably provided with shoulders 20 at each end abuttingagainst the end wall and plate and with nuts 21 fitting thev threadedends of the studs to hold the parts in position. Any suitable number ofstuds may be employed to support the separating plates, and they arelocated preferably -near the periphery of the separating plates. Theseplates are of a size to leave passages 22 between the periphery of theplates and the inner surface of the wall of 'the casing for the passageof air from one fan chamber into the next succeeding deflector chamber,in the latter of which deflectors 23 are located to influence the iiowof air currents toward the center of the casing for passage through thecentral openi ings 15v to the next succeeding pressure compartment.

A shaft 24 projects from the motor 7 through the several end walls,diaphragms and separating plates, and a fan, consisting of a number ofblades 25, supported by a fan base 26 is secured to the shaft, one fanin each of the chambers` 16. The end walls and diaphragms may be securedto the casing in any suitable and convenient manner, as herein shown,the end wall 9 resting .against angle pieces 27, and spacing pins 28secured in this end wall and diaphragm holding the several partsproperly spaced.

In the form of apparatus illustrated herein the end wall 10 forms onewall of the first pressurev compartment from the inlet toward thecasing. This wall, as well as the other walls at the inlet to each ofthe pressure compartments, has a flat face 33 located substantially Aatright angles to the axis of the casing and extending for a substantialdistance from the'periphery of the wall, as shown herein, nearly halfway to the center. From this point the plate is -dish shaped to providea recess constituting at both ends to receive the end wall andseparating plate, nuts being applied to both ends of the studs to holdthe parts in position. As tothe studs secured to the diaphragms theinner ends are preferably screw threaded into the diaphragme, theopposite ends being shouldered to receive a separating plate 18 andthreaded to receive. the nuts to hold said plate in place. Q

The arrangement of the plates 18 provides discharge channels 29extending from the periphery of the fans to the edge of the plate andaround said edge, and this manner of mounting the plates to formdischarge channels enables the size and form yof the latter to be-variedto suit any conditions that may arise. The fan bases are recessed as at30 to provide space Kfor packing means at the center of the plates 18.The vholes for the shaft 24 through the plates arel somewhat larger thanthe shaft and a packing 31 closely fitting the shaft is placed againstleach plate and a collar 32 is employed to ,hold the packing in place.

The structure herein shown and described may be departed from to agreater or lesser extent and yet embody the invention as defined by theappended claims and I do not therefore limit the invention to astructure exactly like that herein disclosed.

I claim- `1. In combination with a casing having inlet and outletopenings, walls extending across the casing and forming the boundariesof a pressure compartment, one of said wallsalso forming the boundary ofa fan chamber and having an opening at the center thereof, a set ofstuds secured to one of said walls and projecting from the face onopposite sides of the center thereof, a separating plate mounted on theends of saidstuds and forming one wall of said fan chamber, a fanlocated within said chamber and with its end terminating at asubstantial distance from the periphery of the separating plate toprovide a discharge channel between said separating plate and the wallof the compression chamber, and means for rotating the fan.

2. In combination with a casing having inlet and outlet openings, wallsextending across the casing and forming the boundaries of a compressionchamber, one of said walls being centrally recessed to form a fanchamber and having a central opening in said recess, a set of studsprojecting from the 'face of one of said walls on opposite sides of thecenter thereof, a plate secured to the ends of said studs-and spacedfrom said'wall, said plate being smaller in diam eter than the interiorforming of said fan chamber, a fan located within 'said recessand of adiameter substantiallfr less than the diameter of said plate to proofthe casing -and the opposite and stationary Wall vide a dischargelchannel of substantial length between said wall and plate and beyondthe periphery of the fan, and means for rotating the fan.

3. In combination with a casing having inlet and outlet openings, wallsextending thereacross to form the boundaries of a compression chamber,one of said walls being recessed at its center to form a fan chamber andthe balance of said wall being Hat and located at right angles to theaxis of the casing, said wall having an opening at the center thereof, aset of studs extending from the opposite wall, a plate less in diameterthan the interior of the casing supported on the ends of said studs andspaced from the recessed VWall and extending parallel with the flatportion thereof, the periphery of said plate being located at asubstantial distance lfrom the edge of the fan chamber to proaries of acompression chamber, one of said walls having an opening at the centerthereof, a set of spacing pins secured in screw threaded openings in theopposite wall to adjustably space said walls apart, studs re. movablysecured to said opposite wall, a' plate removably secured to said studsand spaced from the wall having the central opening, a fan locatedbetween said plates substantially less in diameter than said plate toprovide a 'discharge channel between said plates, and means for rotatingthe fan.

5. In combination with a casing having inlet and outlet openings, a wallextending across said casing and having a concaved depression at thecenter with 4a flat peripheral portion located at right angles to theaxis of the casing, a fan having its base located in the bottom of saiddepression and projecting outwardly therefrom, a flat plate disposedparallel with the fiat peripheral portion of said wall, forming one wallof the fan chamber and one wall of a discharge space, said plate beingof a diameter materially greater than that of the fan, and means forsupporting and rotating the fan.

6. In combination with a casing having a passage through one wallthereof, walls extending across said casing and each having a concaveddepression at the center with a at peripheral portion located at rightangles to the axis of the casing, said walls being disposed in parallelrelation and one having an inlet opening at its center, a flat platelocated between said walls land spaced from one to provide a fanchamber, said plate having its peripheral portion located opposite theHat portion 0f said one wall to lprovide a discharge space with paral-ISO lel Walls, a fan located in said fan chamber,

and means for supporting and rotating the fan.

7. In combination With acasing having a passage through one Wallthereof, a Wall vextending across said casing to close it, a set pinssecured to said Walls upon opposite sides of the center thereof, aWallextending across said casing and resting against said pins toconstitute a fan chamber between said wall and plate, a fan locatedwithin said chamber, and means for supporting and rotating the fan.

8. In combination with a casing of round tubular form having a passagethrough one wall thereof, walls extending across said tube at a distancefrom each end thereof,

said Walls having a depressed central portion and a iat peripheralportion arranged in parallel relation, one of said Walls having an inletopening at its center, a flat plate disposed between said Walls andhaving its periphery arranged in parallel relation to the fiat portionof one of said Walls to pro- C vlde a discharge space havlng parallelWalls,

said plate being of a diameter less than the diameter of said casing toprovide for the passage of air about the periphery of said plate, a fanlocated in a fan chamber constituted by the depressed central portion ofone of said walls, and means for supporting and rotating the fan.

IRA H. SPENCER.

Witnesses:

D. E. SHEA, H. A. LORD.

